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1/4W Metal Film Resistors 1% Tolerance 1Ω–22MΩ — 50-Pack (Select Value)
1/4W Metal Film Resistors 1% Tolerance 1Ω–22MΩ 50-Pack (Select Value)
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1/4W Metal Film Resistors — 1% Tolerance, 1Ω–22MΩ (50-Pack)
These 1/4W metal film resistors offer 1% tolerance and ±100ppm/°C temperature coefficient — significantly more precise than standard 5% carbon film resistors. Available in values from 1Ω to 22MΩ, they are the preferred choice for precision analog circuits, voltage dividers, filter networks, and sensor signal conditioning.
Key Specifications
| Parameter | Value |
|---|---|
| Power Rating | 1/4W (0.25W) |
| Tolerance | ±1% |
| Value Range | 1Ω – 22MΩ (E96 series) |
| Temperature Coefficient | ±100ppm/°C |
| Color Code | 5-band (4 value bands + 1 tolerance band) |
| Construction | Metal film on ceramic substrate |
| Max Voltage | 250V |
| Operating Temperature | −55°C to +155°C |
| Lead Pitch | 2.54mm (standard through-hole) |
| Quantity | 50 pieces (single value per pack) |
Metal Film vs Carbon Film — Why It Matters
| Feature | Metal Film (This Product) | Carbon Film |
|---|---|---|
| Tolerance | ±1% | ±5% |
| Temp Coefficient | ±100ppm/°C | ±200–500ppm/°C |
| Noise | Lower | Higher |
| Stability | Better | Good |
| Cost | Slightly higher | Lower |
Why Choose These Resistors?
- 1% Tolerance — Actual value within 1% of marked value; critical for precision voltage dividers and filters
- Low Noise — Metal film construction produces less thermal noise than carbon film
- ±100ppm/°C — Stable resistance over temperature for reliable circuit performance
- 5-Band Color Code — More precise value identification than 4-band carbon film
- 50-Pack Value — Sufficient for prototyping, kits, and small production runs
Typical Applications
- Precision voltage divider networks (ADC reference, sensor biasing)
- Active filter design (R-C low-pass, high-pass, band-pass)
- Op-amp gain setting resistors (inverting/non-inverting amplifiers)
- Current sensing shunt resistors (low values)
- Pull-up/pull-down resistors for I2C, SPI, and GPIO lines
- LED current limiting resistors
FAQ
Q: How do I read a 5-band resistor color code?
A: Bands 1–3 = significant digits, Band 4 = multiplier, Band 5 = tolerance (brown = ±1%). Example: Brown-Black-Black-Red-Brown = 10 × 100 = 1kΩ ±1%.
Q: Can 1/4W resistors handle 5V Arduino GPIO current?
A: Yes — at 5V with 470Ω (typical LED resistor), power = 5²/470 = 53mW, well within 250mW rating.
Package Contents
- 50× 1/4W Metal Film Resistor (selected value, ±1%)
